外加纵向电磁场作用下GMAW复合材料堆焊试样的显微组织和力学性能

Ji’an Luo
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引用次数: 2

摘要

为了满足塑料制造领域对热锻模具的要求,采用纵向电磁场气体金属弧焊(llf -GMAW)制造双金属热成型模具和修复旧模具。采用SEM、EDS、显微硬度、耐磨性和热物理模拟测试等方法分析了复合材料的显微组织和力学性能。研究表明,llf - gmaw方法可以提高堆焊层的耐磨性,增强界面结合能力,提高双金属堆焊件的热机械强度。
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Microstructure and mechanical properties of overlaying specimens in GMAW hybrid an additional longitudinal electromagnetic field
In order to meet requirements of hot forge mould in the plastic manufacturing fields, the gas metal arc welding (GMAW) with a longitudinal electromagnetic field (LMF-GMAW) is applied to manufacture the bimetal thermal forming mould and repair the old die. The microstructure and mechanical properties are analyzed by SEM, EDS, micro-hardness, wear-resistance and thermal physical simulation testing methods. Our study shows that the LMF-GMAW method can increase the wear resistance property of the surfacing layer, enhance the interface bonding ability and improve the thermal mechanical strength of bimetal overlay work pieces.
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